my-weibo

自定义button

• 自定义图片位置

// 自定义图片的位置
- (CGRect)imageRectForContentRect:(CGRect)contentRect {
    CGFloat imageW = contentRect.size.width;
    CGFloat imageH = contentRect.size.height * 0.6;
    return CGRectMake(0, 0, imageW, imageH);
}

• 自定义文字位置

// 自定义文字位置
- (CGRect)titleRectForContentRect:(CGRect)contentRect {
    CGFloat titleW = contentRect.size.width;
    CGFloat titleH = contentRect.size.height * 0.4;
    return CGRectMake(0, contentRect.size.height * 0.6, titleW, titleH);
}

• 长按按钮

// 去除自带的长按效果
- (void)setHighlighted:(BOOL)highlighted {}

图片相关 UIImage

• 拉伸图片

// 拉伸图片
+ (UIImage *)resizeImage:(NSString *)name {
    UIImage *image = [UIImage imageWithOS7:name];
    
    return [image stretchableImageWithLeftCapWidth:image.size.width * 0.5 topCapHeight:image.size.height * 0.5];
}

• 加载url图片

  • 引入SDWebImage
  • 它会自动的启动多线程来加载图片，以及cache

   #import "UIImageView+WebCache.h"
   [cell.imageView sd_setImageWithURL:[NSURL URLWithString:iconUrl]];
  

计算大小

• 计算字体占据大小

NSString *badgeValue = @"123";
CGFloat width = [badgeValue sizeWithAttributes:@{@NSFontAttributeName: self.titleLabel.font}].width;

自定义导航栏 NavViewController

• 自定义导航栏 取出导航栏以及按钮

UINavigationBar *navBar = [UINavigationBar appearance];
UIBarButtonItem *item = [UIBarButtonItem appearance];
    

• push 时候取消tabBar的显示

- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated {
    if (self.viewControllers.count > 0) viewController.hidesBottomBarWhenPushed = YES;
    
    [super pushViewController:viewController animated:YES];
}

数据相关

• 讲数据对象存储为数据字典

{
    "access_token" = "2.00fzxwTC0Dslm666b918bfa5vjkRBC";
    "expires_in" = 157679999;
    "remind_in" = 157679999;
    uid = 2274833051;
}

// 声明成员变量
#import <Foundation/Foundation.h>

@interface OAuthAccount : NSObject <NSObject>

@property (nonatomic, assign) NSString *access_token;
@property (nonatomic, assign) long long expires_in;
@property (nonatomic, assign) long long remind_in;
@property (nonatomic, assign) long long uid;

+ (instancetype)accoutWithDict:(NSDictionary *)dict;
- (instancetype)initWithDict:(NSDictionary *)dict;

@end

// 在对于的.m文件中实现相应的方法，进行赋值
// json里的数据必须一一对于头文件里创建的数据的变量名
+ (instancetype)accoutWithDict:(NSDictionary *)dict {
    return [[self alloc] initWithDict:dict];
}

- (instancetype)initWithDict:(NSDictionary *)dict {
    self = [super init];
    
    [self setValuesForKeysWithDictionary:dict];
    
    return self;
}